-Translation - AIS-CP 123/2005 September 22, 2005 Re: The Resolution of AIS073A Debenture holders' Meeting Regarding an Amendment the Terms and Conditions of the Company's Debentures. To: The President The Stock Exchange of Thailand We would like to inform you that Advanced Info Service Public Company Limited ("the Company") held the AIS073A debenture holders' meeting on September 22, 2005, at 14.30 in the Auditorium, Shinawatra Tower 1, 19th Floor, Phaholyothin Road, Bangkok. The Company seeks approval at the AIS073A debenture holders' meeting to amend the terms and conditions of the dividend covenant of the Company's debentures in order to increase the flexibility in dividend payments. The debenture holders of AIS073A resolved to give approval for the Company to pay dividends to shareholders over 40% of net profit, on the condition that the Company must receive at least an "AA" rating from a credit rating agency that has been approved by the Office of the Securities and Exchange Commission. This rating must be received within a period of 45 days before the approval of the dividend payment by the board of directors. In the event that the Company is in default of principal or interest payment under the debentures in any installment, the Company shall not pay dividends in any form whatsoever to the shareholders of the Company. Refer to the resolutions of the previous debenture holders' meeting (AIS063A, AIS06NA,AIS070A,AIS093A and AIS093B) held on September 12,2005, at 14.30 in the Grand Ballroom, Four Seasons Hotel, Bangkok,including that of AIS073A debenture holders' meeting,all debenture holders of the Company gave approval for the Company to amend the terms and conditions of the dividend covenant as stated above. Please be informed accordingly. Yours sincerely, (Signed) Somprasong Boonyachai (Mr.) Director Advanced Info Service Public company Limited